Ed Mastery - the Standard Unix Text Editor

'I'm glad someone's finally giving ed the attention it deserves.'
- Ken Thompson, co-creator of Unix
Let me be perfectly clear: ed is the standard Unix text editor. If you don't know ed, you're not a real sysadmin.
Forty years after ed's introduction, internationally acclaimed author Michael W Lucas has finally unlocked the mysteries of ed for everyone. With Ed Mastery, you too can become a proper sysadmin.
Ed Mastery will help you:
• understand buffers and addresses
• insert, remove, and mangle text
• master file management and shell escapes
• comprehend regular expressions, searches, and substitutions
• create high-performance scripts for transforming files
You must be at least this competent to use this computer. Read Ed Mastery today!